Feed-water purifier.



PATENTED APR. 2, 1907.

J. S. CLARKE. FEED WATER PURIFIER.

APPLICATION rum) APR. 21. 1906.

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PATENTED APR., 2, 1907.

J. S. CLARKE.

FEED WATER PURIFIER.

APPLIOATION FILED APR. 21. 1906.

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JOHN SHURBON CLARKE, OF CLEVELAND, OIIIO.

FEED-WATER PURIFIER.

Specification of Letters Patent.

Patented April 2, 1907.

Application filed Apri121, 1906. Serial No. 313,055.

To all whom it may concern.-

Be it known that I, JOHN SHURBON CLARKE, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Feed- VVater Purifiers for Steam-Boilers; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in feed-water purifiers for steam-boilers, and consists in the construction, combination, and arrangement of devices hereinafter described and claimed.

The object of my invention is to provide means to spray the feed-water, in combination with a trough in the steam-space of the boiler to receive the sprayed feed-water, so that the feed-water by being heated by the steam becomes separated from the lime and other impurities, which sink in the trough, while the feed-water overflows the trough and becomes supplied to the boiler.

A further object of my invention is to effect improvements in the construction of the trough, so that the same may be readily taken apart to facilitate the cleaning thereof and may be readily assembled in the boiler and fixed in place therein.

In the accompanying drawings, Figure l is a vertical longitudinal sectional view of a steam-boiler provided with my improved feed-water purifier. Fig. 2 is a transverse sectional view of the same. Fig. 3 is a detail sectional perspective view of the purifyingtrough, and Fig. 4 is a vertical longitudinal sectional view of asteam-boiler provided with a modified form of my improved feedwater purifier.

The boiler 1 (shown in Fig. 1) is provided with a manhole 2 and with a head 3 therefor. In the upper portion of the boiler, in the steam-space thereof, is suspended a feedwater-purifying trough 4. The same may be made of any suitable material and comprises the separable bottom 5, side walls 6, and end walls 7. The bottom is provided at its sides with downturned flanges S. The side walls are provided at their lower edges on their inner sides with upturned flanges 9 to receive the flanges 8 of the bottom and form an interlocking connection between the bottom and the side walls. The said side walls are also provided at their ends on their inner sides with vertical grooves 10 to receive the end walls 7, the latter having hooks or catches 11 at their ends to engage the outer sides of the side walls 6. The latter are further provided with eyes 12 to engage suspending-bails 13, which hang from the upper side of the boiler. Thereby the trough is suspended in the steam-space of the boiler at a suitable distance from the top thereof. The trough may be placed in the boiler or taken out therefrom through the manhole and may be assembled either before being placed in the boiler or after it has been placed therein.

The feed-water pipe 14 enters the upper side of the boiler at about the center thereof and is provided at its discharge end with a spray-pipe 15, which is within the steamspace of the boiler above and at a suitable distance from the trough.

In the operation of my invention the feedwater is delivered in the form of spray to the purifying-trough, and as the spray descends through the steam in the steam-space it becomes highly heated, so that the feed-water becomes separated from the lime and other impurities. Such impurities settle to the bottom of the purifying-trough, and the feedwater overflows such trough and drops therefrom into the boiler. Such of the impurities as may fail to settle in the purifyingtrough will settle in the bottom of the boiler and may be readily blown out therefrom. By first taking the purifying-trough apart it may be readily cleaned of the scale and other sediment which accumulates therein.

In the modified form of my invention (shown in Fig. 1) I provide in addition to the purifyingtrough 4 and feed pipe 14, with its spray-pipe 15, an additional purifyingtrough 16, which is supported below and at a suitable distance from the trough 4 and is wider and longer than said trough 1, so that the water which overflows from said trough 1 drops into the trough 16 and has to overflow the latter before it reaches the body of water in the boiler. The said lower trough 16 is provided with a blow-off pipe 17 to facilitate the cleansing thereof.

My improved purifying-trough is preferably made of Zinc to prevent the same from corroding and to prevent injury to the boiler when the feed-water is acid to any extent.

From the foregoing description, taken in connection with the accompanying drawings, the construction, operation, and advantages of the invention will be readily understood without requiring a more extended explanation.

Variouschanges in the form, proportion, and the minor details of construction may be resorted to without departing from the prin ciple or sacrificing any of the advantages of the invention as defined by the appended claim.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

A feed-water-purifying trough for steamboilers, comprising a bottom, side walls and end walls detachably secured together, for the purpose set forth.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

JOHN SHURBON CLARKE.

WVitnesses:

CHAS. O. KENDALL, FRANK J. HENNING. 

